Crystal growth of Sr2RuO4
Crystal growth of Sr2RuO4
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DOI：
10.1016/s0025-5408(00)00378-0
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发表时间：
2000-08-01
影响因子：
5.4
通讯作者：
Fukazawa, H
中科院分区：
文献类型：
--
作者：
Mao, ZQ;Maeno, Y;Fukazawa, H
我们用浮区法描述了Sr2RuO4晶体生长的细节。通过调节晶体生长条件可以控制超导转变温度T-c。通过优化生长条件，获得了T-c高达1.50 K的晶体。此外，我们还观察到在不同条件下生长的三种两相复合结构。它们包括(I) Sr2RuO4-Ru共晶体系，其中Ru薄片嵌入Sr2RuO4的初级相中，导致T-c显著提高约2倍；(2)铁磁性SrRuO3在Sr2RuO4上外延生长；(3) Sr2RuO4共晶生长，形成新的绝缘相，可能由Sr3RuO5+ δ组成。(C) 2000 Elsevier Science Ltd.版权所有。
We describe the details of crystal growth of Sr2RuO4 by a floating-zone method. The superconducting transition temperature T-c can be controlled by adjustment of crystal growth conditions. By optimizing the growth conditions, crystals with T-c up to 1.50 K have been obtained. In addition, we observed three kinds of two-phase composite structures grown under different conditions. They include (I) a Sr2RuO4-Ru eutectic system, in which lamellae of Ru are embedded in the primary phase of Sr2RuO4, resulting in a remarkable enhancement in T-c by a factor of about 2; (2) epitaxial-like intergrowth of ferromagnetic SrRuO3, on Sr2RuO4; and (3) eutectic growth of Sr2RuO4 and a new insulating phase with the possible composition of Sr3RuO5+delta. (C) 2000 Elsevier Science Ltd. All rights reserved.